diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..f90dc8e
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,18 @@
+module github.com/immutability-io/go-ethereum-hdwallet
+
+go 1.12
+
+require (
+	github.com/aristanetworks/goarista v0.0.0-20180627184309-2c5933638c5e
+	github.com/btcsuite/btcd v0.0.0-20180531025944-86fed781132a
+	github.com/btcsuite/btcutil v0.0.0-20180524032703-d4cc87b86016
+	github.com/davecgh/go-spew v1.1.0
+	github.com/ethereum/go-ethereum v1.8.11
+	github.com/go-stack/stack v1.7.0
+	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db
+	github.com/miguelmota/go-ethereum-hdwallet v0.0.0-20190720004541-5f6b3168e4a0
+	github.com/syndtr/goleveldb v0.0.0-20180621010148-0d5a0ceb10cf
+	github.com/tyler-smith/go-bip39 v0.0.0-20180618194314-52158e4697b8
+	golang.org/x/crypto v0.0.0-20180621125126-a49355c7e3f8
+	gopkg.in/karalabe/cookiejar.v2 v2.0.0-20150724131613-8dcd6a7f4951
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..64379dc
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,24 @@
+github.com/aristanetworks/goarista v0.0.0-20180627184309-2c5933638c5e h1:GfUJvUv57+W9J0lpQB5/hsdv43F46ffAJewlooRGXXo=
+github.com/aristanetworks/goarista v0.0.0-20180627184309-2c5933638c5e/go.mod h1:D/tb0zPVXnP7fmsLZjtdUhSsumbK/ij54UXjjVgMGxQ=
+github.com/btcsuite/btcd v0.0.0-20180531025944-86fed781132a h1:fuEu3WaOzatbWFGlCa2e/TL/GR397Da8QSKNKrDRa3s=
+github.com/btcsuite/btcd v0.0.0-20180531025944-86fed781132a/go.mod h1:Dmm/EzmjnCiweXmzRIAiUWCInVmPgjkzgv5k4tVyXiQ=
+github.com/btcsuite/btcutil v0.0.0-20180524032703-d4cc87b86016 h1:BsZAJgCuMsoFZMZNyj7Lyt6sS8anDhedVrAMCOyPMIo=
+github.com/btcsuite/btcutil v0.0.0-20180524032703-d4cc87b86016/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ethereum/go-ethereum v1.8.11 h1:BQW9TK1H8xRYQ23M1SRzc/C4dePhYYAH31krY0xs1vU=
+github.com/ethereum/go-ethereum v1.8.11/go.mod h1:PwpWDrCLZrV+tfrhqqF6kPknbISMHaJv9Ln3kPCZLwY=
+github.com/go-stack/stack v1.7.0 h1:S04+lLfST9FvL8dl4R31wVUC/paZp/WQZbLmUgWboGw=
+github.com/go-stack/stack v1.7.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pOkfl+p/TAqKOfFu+7KPlMVpok/w=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/miguelmota/go-ethereum-hdwallet v0.0.0-20190720004541-5f6b3168e4a0 h1:DmK33IJe81zJOzLmzzBHWf2/fGB0tnvqLnvGu8S5wYY=
+github.com/miguelmota/go-ethereum-hdwallet v0.0.0-20190720004541-5f6b3168e4a0/go.mod h1:VVt+rn/itmf+9eZq9CAabVlsfsHveUNUQ0bRv3ChqxY=
+github.com/syndtr/goleveldb v0.0.0-20180621010148-0d5a0ceb10cf h1:QDa82vuIQYktiygoQ49yLjSwCsHFxcDWsWsENaIm33I=
+github.com/syndtr/goleveldb v0.0.0-20180621010148-0d5a0ceb10cf/go.mod h1:Z4AUp2Km+PwemOoO/VB5AOx9XSsIItzFjoJlOSiYmn0=
+github.com/tyler-smith/go-bip39 v0.0.0-20180618194314-52158e4697b8 h1:g3yQGZK+G6dfF/mw/SOwsTMzUVkpT4hB8pHxpbTXkKw=
+github.com/tyler-smith/go-bip39 v0.0.0-20180618194314-52158e4697b8/go.mod h1:sJ5fKU0s6JVwZjjcUEX2zFOnvq0ASQ2K9Zr6cf67kNs=
+golang.org/x/crypto v0.0.0-20180621125126-a49355c7e3f8 h1:h7zdf0RiEvWbYBKIx4b+q41xoUVnMmvsGZnIVE5syG8=
+golang.org/x/crypto v0.0.0-20180621125126-a49355c7e3f8/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+gopkg.in/karalabe/cookiejar.v2 v2.0.0-20150724131613-8dcd6a7f4951 h1:DMTcQRFbEH62YPRWwOI647s2e5mHda3oBPMHfrLs2bw=
+gopkg.in/karalabe/cookiejar.v2 v2.0.0-20150724131613-8dcd6a7f4951/go.mod h1:owOxCRGGeAx1uugABik6K9oeNu1cgxP/R9ItzLDxNWA=
diff --git a/hdwallet.go b/hdwallet.go
index d4ed97e..80dc3fa 100644
--- a/hdwallet.go
+++ b/hdwallet.go
@@ -216,6 +216,41 @@ func (w *Wallet) SignHash(account accounts.Account, hash []byte) ([]byte, error)
 	return crypto.Sign(hash, privateKey)
 }
 
+// SignTxEIP155 implements accounts.Wallet, which allows the account to sign an ERC-20 transaction.
+func (w *Wallet) SignTxEIP155(account accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
+	w.stateLock.RLock() // Comms have own mutex, this is for the state fields
+	defer w.stateLock.RUnlock()
+
+	// Make sure the requested account is contained within
+	path, ok := w.paths[account.Address]
+	if !ok {
+		return nil, accounts.ErrUnknownAccount
+	}
+
+	privateKey, err := w.derivePrivateKey(path)
+	if err != nil {
+		return nil, err
+	}
+
+	// Sign the transaction and verify the sender to avoid hardware fault surprises
+	signedTx, err := types.SignTx(tx, types.NewEIP155Signer(chainID), privateKey)
+	if err != nil {
+		return nil, err
+	}
+
+	msg, err := signedTx.AsMessage(types.NewEIP155Signer(chainID))
+	if err != nil {
+		return nil, err
+	}
+
+	sender := msg.From()
+	if sender != account.Address {
+		return nil, fmt.Errorf("signer mismatch: expected %s, got %s", account.Address.Hex(), sender.Hex())
+	}
+
+	return signedTx, nil
+}
+
 // SignTx implements accounts.Wallet, which allows the account to sign an Ethereum transaction.
 func (w *Wallet) SignTx(account accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
 	w.stateLock.RLock() // Comms have own mutex, this is for the state fields